George Mackay spent weeks writing daily diary entries in the voice of his character in order to "explain his inner thoughts." He also spent a long time doing intense physical training with famed movement coach Terry Notary.
"In the clinic and in the therapy sessions, and when [Jacob] was in a sort of more synthetic environment, the camera would be static, and when he was in his wolf state, it would be handheld and fluid," said MacKay. "That affected the performance because the camera couldn't move, so you couldn't make a choice to go where you wanted to. That echoed how Jacob was feeling in that scenario."
The concept is loosely based on Steppenwolf a novel by Herman Hesse.
The first Irish film to shoot during the COVID pandemic once production could safely resume.
It had a theatrical release in the U.S. on 3 December 2021, after premiering at the Toronto International Film Festival on 17 September 2021 as the entry for Ireland.